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AccessViolationException in GetBoudningBox() call

#1

Hi,


I am trying to display a shape file which is in geographic coordinate system to UTM. I am getting the "AccessViolationException" when trying to get the bounding box. Here is my code. Can someone help me where I am dong wrong?



+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


winformsMap1.MapUnit =



GeographyUnit.Meter;Proj4Projection proj = new Proj4Projection(4326, 23030);

 


austinLayer.RequireIndex =


austinLayer.Open();


ShapeFileFeatureLayer austinLayer = new ShapeFileFeatureLayer(strFilename);false;

austinLayer.FeatureSource.Projection = proj;


austinLayer.ZoomLevelSet.ZoomLevel01.DefaultLineStyle =


LineStyles.CreateSimpleLineStyle(GeoColor.StandardColors.Red, 2, true);

austinLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel =


ApplyUntilZoomLevel.Level20;

winformsMap1.StaticOverlay.Layers.Add(austinLayer);



winformsMap1.CurrentExtent = austinLayer.FeatureSource.GetBoundingBox(); //Getting Exception here



++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


Thank you,


Suresh



 



#2

Suresh, 
  
 You need to open the projection before getting the boundingbox as following. 
  
 austinLayer.FeatureSource.Projection.Open() 
  
 Ben.

#3

Thanks Ben. It worked.

#4

Great! Just let us know if we can make your coding easier.